Electrophilic Aromatic Substitutions of Silylated Furans and Thiophenes with Retention of the Organosilyl Group
摘要:
[GRAPHICS]isolable in the presence of a proton spongeThe influence of trialkylsilyl groups on the nucleophilic reactivities of furans and thiophenes is determined by kinetic experiments.
Electrophilic Aromatic Substitutions of Silylated Furans and Thiophenes with Retention of the Organosilyl Group
摘要:
[GRAPHICS]isolable in the presence of a proton spongeThe influence of trialkylsilyl groups on the nucleophilic reactivities of furans and thiophenes is determined by kinetic experiments.
Nucleophilic Reactivities of Tributylstannyl-Substituted Furans and Thiophenes
作者:Mirjam Herrlich、Herbert Mayr、Rudolf Faust
DOI:10.1021/ol0158112
日期:2001.5.1
Relative positional reactivities[GRAPHICS]Kinetic investigations of the reactions of benzhydryl cations with stannylated furans and thiophenes suggest that 2-(tributylstannyl)furan and -thiophene are preferentially attacked at the 5 position (k(rel), FcPhCH(+), 20 degreesC, CH2Cl2).